<?php
/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */

/**
 * load a resource plugin
 *
 * @param string $type
 */

// $type

function smarty_core_load_resource_plugin($params, &$smarty)
{
	/*
	 * Resource plugins are not quite like the other ones, so they are
	 * handled differently. The first element of plugin info is the array of
	 * functions provided by the plugin, the second one indicates whether
	 * all of them exist or not.
	 */

	$_plugin = &$smarty->_plugins['resource'][$params['type']];
	if (isset($_plugin)) {
		if (!$_plugin[1] && count($_plugin[0])) {
			$_plugin[1] = true;
			foreach ($_plugin[0] as $_plugin_func) {
				if (!is_callable($_plugin_func)) {
					$_plugin[1] = false;
					break;
				}
			}
		}

		if (!$_plugin[1]) {
			$smarty->_trigger_fatal_error("[plugin] resource '" . $params['type'] . "' is not implemented", null, null, __FILE__, __LINE__);
		}

		return;
	}

	$_plugin_file = $smarty->_get_plugin_filepath('resource', $params['type']);
	$_found = ($_plugin_file != false);

	if ($_found) {            /*
		* If the plugin file is found, it -must- provide the properly named
		* plugin functions.
		*/
		include_once($_plugin_file);

		/*
		 * Locate functions that we require the plugin to provide.
		 */
		$_resource_ops = array('source', 'timestamp', 'secure', 'trusted');
		$_resource_funcs = array();
		foreach ($_resource_ops as $_op) {
			$_plugin_func = 'smarty_resource_' . $params['type'] . '_' . $_op;
			if (!function_exists($_plugin_func)) {
				$smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", null, null, __FILE__, __LINE__);
				return;
			} else {
				$_resource_funcs[] = $_plugin_func;
			}
		}

		$smarty->_plugins['resource'][$params['type']] = array($_resource_funcs, true);
	}
}

/* vim: set expandtab: */

?>
